摘要
传统热风干燥耗能高、耗时长,红外干燥兼具节能与高效潜力,但仍需解决光场分布不均和能量利用效率较低的问题。设计一种红外匀光干燥系统,通过优化红外灯管光场空间分布,提升辐照均匀性与能量利用率,改善电极性能。该系统辐照均匀性达到95.42%,能量利用率提升至38.98%,分别为未匀光系统的109.97%和313.60%。干燥时间从热风对流法的350 s缩短至21 s,且干燥后电极具有较好的机械性能和电化学性能,黏附力达到17.19 N/m,高于热风干燥和未匀光干燥电极,所组装半电池的倍率性能与热风干燥相似。该红外匀光干燥系统可降低当前电池生产成本,提高生产效率与工艺水平。
Traditional hot-air drying is energy-intensive and time-consuming,whereas infrared drying has the potential for energy efficiency and high speed.However,issues such as uneven light field distribution and low energy utilization efficiency remain to be addressed.The design of an infrared light homogenization drying system is proposed,which optimizes the spatial distribution of infrared lamps to improve irradiance uniformity and energy utilization efficiency,thereby enhancing electrode performance.The system achieves an irradiation uniformity of 95.42%and an energy utilization efficiency of 38.98%,representing 109.97%and 313.60%,respectively,of those obtained without the homogenization system.The drying time is shortened from 350 s using hot-air convection to 21 s.Furthermore,the dried electrodes exhibit excellent mechanical properties and electrochemical performane,with an adhesion strength of 17.19 N/m,which is higher than that of electrodes dried by hot-air or non-homogenized infrared,the rate capability of half-battery is similar to that of hot-air.The infrared homogenization drying system reduces the cost of the current battery production,while enhancing production efficiency and process quality.
作者
周琪
王海洋
熊大曦
ZHOU Qi;WANG Haiyang;XIONG Daxi(School of Biomedical Engineering(Suzhou),University of Science and Technology of China,Suzhou 215163,Jiangsu,China;Medical Optics Laboratory,Suzhou Institute of Biomedical Engineering and Technology,Chinese Academy of Sciences,Suzhou 215163,Jiangsu,China)
出处
《电池》
北大核心
2026年第1期53-60,共8页
Battery Bimonthly
关键词
锂离子电池
极片干燥
近红外
热风对流法
均匀性
能量利用率
Li-ion battery
electrode film drying
near-infrared
hot-air convection
uniformity
energy utilization
